کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7615030 1493982 2018 35 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication of size controlled nanocomposite based on zirconium alkoxide for enrichment of Gallic acid in biological and herbal tea samples
ترجمه فارسی عنوان
ساخت نانو کامپوزیت اندازه گیری شده بر اساس آلکوکید زیرکونیوم برای غنی سازی اسید گالیک در نمونه های چای بیولوژیکی و گیاهی
کلمات کلیدی
گالیک اسید، چای گیاهی: پلاسمای انسانی، پیش ماده فلزی ارگانیک، نانوکامپوزیت،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
In this work, novel water-dispersible size controlled nanocomposite based on zirconium alkoxide as metal organic precursor was fabricated and subsequently applied for rapid, efficient and selective preconcentration of gallic acid in human plasma and herbal tea samples. The resultant nanocomposite (Fe3O4@Zr(OtBu)4@Laurate) was characterized by Fourier transform infrared, scanning electron microscope and X-ray spectrometer, while laurate forms aggregates on the surface of the nanocomposite and thereby improves sorption of gallic acid. The effects of some variables on efficiency of gallic acid from real samples were optimized by central composite design; while optimum points were achieved as follows: pH 3.5, 35.0 mg of nanocomposite, 150.0 μL of eluent and 3.0 min sonication time. Chromatographic separation was carried out on analytical Nucleosil C18 column (250 × 4.6 mm I.D., 5 μm particle size) at ambient temperature with methanol: water (40:60, v/v) pH adjusted at 3.5 follow by UV detection at 270 nm. Acceptable limit of detection (0.2 μg kg−1) and wide linear range (1.0-700.0 μg kg−1) in coincidence with reasonable enrichment factor (EF = 125) are the unique advantages, which promise this method for quantification of this compound in real samples with complicated matrices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography B - Volumes 1087–1088, 15 June 2018, Pages 14-22
نویسندگان
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